diff --git a/README.md b/README.md
index ea15899..455456d 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ AWS Kubernetes is a Kubernetes cluster deployed using [Kubeadm](https://kubernet
 
 ## Updates
 
+* *29.1.2018:* Add automatically tag also to the master subnet
 * *22.1.2018:* Update Calico to 3.0.1
 * *22.1.2018:* Update to Kubernetes 1.9.2, Ingres 0.10.0 and Dashboard 1.8.2
 * *6.1.2018:* Update to Kubernetes 1.9.1
diff --git a/main.tf b/main.tf
index 29f6e38..58f95be 100644
--- a/main.tf
+++ b/main.tf
@@ -186,7 +186,7 @@ data "template_file" "init_master" {
     asg_name      = "${var.cluster_name}-nodes"
     asg_min_nodes = "${var.min_worker_count}"
     asg_max_nodes = "${var.max_worker_count}"
-    aws_subnets   = "${join(" ", var.worker_subnet_ids)}"
+    aws_subnets   = "${join(" ", concat(var.worker_subnet_ids, list(var.master_subnet_id)))}"
 
   }
 }